<template>
  <div class="app-container">

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:category:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:category:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:category:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-bottom"
          size="mini"
          :disabled="single"
          @click="handleViewSub"
          v-hasPermi="['system:category:list']"
        >下级分类</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-back"
          size="mini"
          @click="handleBack"
          v-hasPermi="['system:category:list']"
        >返回上级</el-button>
      </el-col>
    </el-row>

    <el-table v-loading="loading" :data="categoryList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="商品分类名" align="center" prop="categoryName" />
      <el-table-column label="排序值" align="center" prop="categorySort" />
      <el-table-column label="添加时间" align="center" prop="categoryAddtime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.categoryAddtime, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改分类管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="商品分类名" prop="categoryName">
          <el-input v-model="form.categoryName" placeholder="请输入商品分类名" />
        </el-form-item>
        <el-form-item label="排序值" prop="categorySort">
          <el-input v-model="form.categorySort" placeholder="请输入排序值" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listCategory, getCategory, delCategory, addCategory, updateCategory } from "@/api/system/category"

export default {
  name: "SubCategory",
  data() {
    return {
      parentId: null,
      grandParentId: null,
      loading: true,
      ids: [],
      single: true,
      multiple: true,
      showSearch: true,
      total: 0,
      categoryList: [],
      title: "",
      open: false,
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        categoryName: null,
        categoryParentId: null, // 从路由参数获取
        categorySort: null,
        categoryAddtime: null
      },
      form: {},
      rules: {}
    }
  },
  created() {
    this.parentId = this.$route.query.parentId
    this.grandParentId = this.$route.query.parentId
    this.queryParams.categoryParentId = this.parentId
    this.getList()
  },
  methods: {
    /** 查询分类管理列表 */
    getList() {
      this.loading = true
      listCategory(this.queryParams).then(response => {
        this.categoryList = response.rows
        this.total = response.total
        this.loading = false
      })
    },

    /** 查看下级分类 */
    handleViewSub() {
      if (this.single) {
        this.$modal.msgWarning("请选择一条数据")
        return
      }
      const selectedId = this.ids[0]
      this.$router.push({
        path: '/managementModules/childCategory',
        query: { parentId: selectedId, grandParentId: this.grandParentId}
      })
    },

    handleBack() {
      this.$router.push('/managementModules/category')
    },

    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        categoryId: null,
        categoryName: null,
        categoryParentId: null,
        categorySort: null,
        categoryAddtime: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.categoryId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加分类管理"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const categoryId = row.categoryId || this.ids[0]
      // const categoryParentId = row.categoryParentId || this.ids
      getCategory(categoryId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改分类管理"
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.categoryId != null) {
            updateCategory(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            this.form.categoryParentId = this.parentId
            addCategory(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const categoryIds = row.categoryId || this.ids
      this.$modal.confirm('是否确认删除分类管理编号为"' + categoryIds + '"的数据项？').then(function() {
        return delCategory(categoryIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/category/export', {
        ...this.queryParams
      }, `category_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
